In response, fans on Tumblr did what they do best, and turned Jupiter/Earth into an OTP—a One True Pairing—and the Milky Way into a fandom.

Oh, sorry, we meant Jupitearth. That’s the combined name for the pairing of Jupiter and Earth, who are imagined in this scenario to be people. So far, the new fandom is ignoring any long-distance elements to their relationship.

It started when Tumblr user bloggish chimed in on a thread where people were already shipping the two planets—imagining them together in a romantic relationship (known in fandom as a “ship”) where Jupiter was the injured hero. Bloggish’s story depicted Jupiter as an older, muscled behemoth of a man and Earth as his waifish, starry-eyed protégé:

Earth gulps. “You shouldn’t have to do this for us,” he says.

Jupiter smiles, before pulling Earth into his embrace. Um. Okay. “It’s alright, Earth. I don’t mind. After all - I’m a gas giant, emphasis on the giant. I can get by, pretty much no matter what happens. Other people are more important. People like you. You’re… special.”

“I’m not,” says Earth. “I’m not special. Just… self-important.”

Jupiter chuckles again. “You’re better than you think you are. You’re alive, Earth, and that’s the most important thing. You have people, ideas, emotions still to share. You have so much to find, so much to see, so much to explore. You’re fragile, and I wouldn’t let you get set back by just any old meteor. You are special, Earth; you’re gonna fly across the universe one day, and to me that is worth a thousand burns.”

The thread racked up 40,000 notes and fanart as the, erm, space ship took off. The story, as the original source material for the ship, became the fandom’s impromptu canon. The final line, “worth a thousand burns,” became the new fandom’s catchphrase, and even spawned fanfiction of its own.

And a Fuck Yeah blog—the unofficial sign that a phenomenon has “arrived” on Tumblr

“Only Tumblr could get me to ship planets,” said orchidvenom when posting Jupiter/Earth fanart.

Naturally, like any promising fandom, this one already has controversy over whether Earth should be male or female, with a bonus complaint about Venus being anthropomorphized as male. And, as fans of anime classic Sailor Moon pointed out, anthropomorphizing planets and then hooking them up has been done before.

Jupitearth may not be the first planetary ship to make an appearance in the annals of fandom. But it’s definitely the first one to light up Tumblr like a cosmic explosion.

First, take fandom’s gift at turning websites into characters and writing them into fanfiction romances. Combine with Tumblr’s propensity to create relationship pairings for absolutely everything. Add the infectious enthusiasm of Teen Wolf fandom, and finally, just a pinch of revenge.